UV Light Reveals the Colors of Fossil Shells


Rays of ultraviolet light—the same wavelengths that stream from black lights to give funky fluorescence to a rave—can be used to uncover secrets usually invisible to human eyes. A UV camera can expose sun damage to skin, show how carnivorous plants lure ants and highlight hints of feathers still clinging to dinosaur fossils. Now researchers are using UV light to coax color from porcelain white seashell fossils.